package com.it.reggie.controller;

import com.it.reggie.common.Result;
import com.it.reggie.utils.OssUtil;
import io.swagger.annotations.Api;
import lombok.extern.slf4j.Slf4j;
import org.apache.tomcat.util.http.fileupload.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.UUID;

/**
 * @author:cyh
 * @data:2022/12/15 20:59
 */
@Api(tags = "图片上传")
@Slf4j
@RestController
@RequestMapping("/common")
public class CommonController {
    /*@Value("${reggie.path}")
    private String basePath;*/
    @Autowired
    OssUtil ossUtil;

    @PostMapping("/upload")
    public static Result<String> upload(MultipartFile file) throws IOException {
        //保存到本地
        /*
        //file是一个临时文件，需要转存到指定位置，否则本次请求完成后临时文件会删除
        log.info(file.toString());

       //原始文件名
        String originalFilename = file.getOriginalFilename();
        //得到图片类型
        String fileType = originalFilename.substring(originalFilename.lastIndexOf("."));
        //使用UUID重新生成文件名，防止文件名称重复造成文件覆盖
        String fileName=UUID.randomUUID().toString()+fileType;
        //创建一个目录对象
        File dir = new File(basePath);
        //判断文件目录是否存在,不存在则创建
        if (!dir.exists()){
            dir.mkdirs();
        }

        //将临时文件转存到指定位置
        file.transferTo(new File(basePath+fileName));*/

        //上传到ali的oss存储
        String load = OssUtil.uploadImage(file);
        return Result.success(load);

    }

    /**
     * 文件下载
     * @param name
     * @param response
     */
   /* @GetMapping("/download")
    public void download(String name, HttpServletResponse response) throws IOException {

        //输入流，通过输入流读取文件内容
        FileInputStream inputStream = new FileInputStream(new File(basePath + name));

        //输出流，通过输出流将文件写回浏览器
        ServletOutputStream outputStream = response.getOutputStream();
        IOUtils.copy(inputStream, outputStream);
        *//*
        //返回格式
        response.setContentType("image/jpeg");
        //以数组读取文件并通过输出流写出
        int count=0;
        byte[] bytes = new byte[1024];
        while ((count= inputStream.read(bytes))!=-1){
            outputStream.write(bytes, 0, count);
            outputStream.flush();
        }
        *//*
        //关闭资源
        inputStream.close();
        outputStream.close();
    }*/




}
